384 with maps and plates, of his Mineralogical Description of Scotland. This he intended to be only the beginning of a series that should have comprised geological accounts of all the counties of Scotland. But from this highly useful purpose he was prevented by the cares of attending to the university museum, the publication of a System of Mineralogy, and a volume on the Characters of Minerals. In 1808 he founded at Edinburgh the Wernerian Natural History Society. Hitherto the Huttonian doctrines had prevailed, while those of the Wernerian school were comparatively unknown, until in 1809 Professor Jameson published his Elements of Geognosy, by which Wernerianism was promulgated, and converts made to its theory among the scientific inquirers both of Scotland and England. The establishment of such a society, which was regarded as an intrusion, and its doctrines, which were opposed as downright heresies, roused the indignation of the Huttonians, who had hitherto held possession of the field, and under the distinctive titles of Plutonists and Neptunians, or Huttonists and Wernerians, the rival parties com- menced a war against each other which was carried on with almost theological intensity. The strife indeed has passed away, and even the combatants are asking each other why they fought so fiercely; but some such commotion was needed to quicken the researches of the scientific, and drive them into practical research instead of theory and hypothesis, while science itself has been amplified and improved by the interest which the battle had kindled. Of the Wernerian Society which he founded in Edinburgh, Professor Jameson was elected perpetual president, and to the seven volumes of its Transactions which have been published he was a frequent contributor. The Travels of Baron Leopold Von Buch through Norway and Lapland during the years 1806-7-8 having been published in one volume quarto, Pro- fessor Jameson was so thoroughly impressed by the scientific merits of the work, that he suggested a translation of it for the press; and this being done, he enriched the English version with an account of its author the distinguished traveller and geologist, and several notes illustrative of the natural history of Norway. It was the professor's intention that this should form one of a series of translations, chiefly from the German, of the travels of scientific men, who, like Von Buch, had described the appearance and geological structure of the countries they visited, as well as given an attractive account of their animal and vegetable productions, and the manners and customs of their inhabitants. In 1816 another edition of his System of Miner- alogy appeared in three volumes, and during its day was the most complete work on the subject. About the same period a new edition of his Characters of Minerals was published, and only two years after- wards (1820), so great was the demand for these works, that fresh editions of both were prepared and issued from the press. In 1821 he published a Manual of Minerals and Mountain Rocks. This was reckoned by scientific judges the best text-book of its time, and so great was the demand for it that 1500 copies were sold in the course of a few months. A still more strenuous task for the improvement and diffusion of scientific knowledge was undertaken by Professor Jameson. He had planned in con- junction with Dr. (afterwards Sir David) Brewster the Edinburgh Philosophical Journal, and in 1819 the publication of the series commenced, which at Jame- son's death, had extended to seventy volumes. For the first six years he edited the work in conjunction with Sir David, but afterwards was sole editor until the close of his life. Speaking of this work in 1854, the biographer of Jameson adds, "It is, we believe, admitted to be the most valuable repository of scientific information in Britain for the period of its existence. The earlier volumes contain not a few contributions from himself; and besides numerous original articles from other hands, the journal com- prehends translations of memoirs from the French, German, Italian, and Swedish languages, with many communications from foreign correspondents on all the branches of natural history. It will form one of the most durable monuments of his talents and industry." Our ideas of his industry and enthusiastic zeal for science are enhanced by our knowledge of the fact, that during this busy life of authorship, he was diligently performing the duties of his pro- fessorial office, and giving two courses of lectures annually, the one in summer and the other in winter. Although we have mentioned the principal writings of Professor Jameson, there were many others with which he was connected, editorially or otherwise, which were enlarged or illustrated by his pen. This was especially the case with Cuvier's celebrated Discourse on the Theory of the Earth, which was translated into English and published by Mr. Kerr in 1813—a translation which ran through five edi- tions, and made Cuvier familiar to the British public, who until now had known little of this eminent scientific Frenchman. This translation Jameson entirely remodelled in the fifth edition, and so en- tirely, that it was extended from 190 to 550 pages. "The notes I have added," he modestly says in the preface, "will, I trust, be found interesting; and the account of Cuvier's geological discoveries, which accompanies them, will be useful to those who have not an opportunity of consulting the great work." Another demand was made upon Jameson by Captain Parry, on the return of the latter from his Polar expedition; and the professor on this occasion drew up, from the specimens brought home, a sketch of the geology of the different coasts discovered and touched upon, which was published in Parry's narrative of the voyage. Besides this, he drew up for the Cabinet Library an account of the geology of those Arctic regions which Captain Parry had visited. He wrote excellent articles on the physical geography of Africa and India, which were published in the Edinburgh Cabinet Library. He also revised and arranged in a scientific manner a new edition which was published of Wilson's American Ornith- ology in four volumes, making it suitable for a text- book in our universities and schools. Among the detached articles which he wrote at different periods for the Scottish encyclopaedias, may be mentioned those entitled "Adelfors," "Ailsa," "Alabaster," "Altai," "Alleghany Mountains," "Amber," "Am- bergris," "Ammoniac," "Ammonites," "Amphibia," "Amphibious," "Arran," "Diamond," "Hartz," and "Mineralogy," which appeared in the Edinburgh Encyclopedia — and the articles "Mineralogy," "Geology," and "Organic Remains," which were published in the Encyclopedia Britannica, when edited by Macvey Napier. Reverting again from his works in authorship, to the effects of his teaching, the pupils of Jameson were such as few professors could boast of. Of these his biographer has enumerated nineteen who rose to the highest eminence in the sciences which he taught, and of each of whom he might say, as Ulysses does of Achilles— " Injecique manum, fortemque ad fortia misi: Ergo opera illius, mea sunk" The following testimony to his teaching and its effects, was given by Professor Edward Forbes, his scholar, and afterwards his distinguished successor;—